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对青海共和盆地内的达连海湖泊流域54个样点进行植被调查及表土花粉分析,研究了植被与表土花粉之间的关系.结果显示:表土花粉组合可反映出该区植被的总体特征;达连海湖泊流域花粉沉积来源于整个流域植被,花粉与主要植被类型之间相关性良好,但不能完全反映出群落的建群种、优势种和盖度等.蒿属和藜科花粉具有超代表性,禾本科表现为低代表性,蒿/藜比具有区域植被生态特点与气候指示意义,在不同的植被区域A/C变化明显;影响达连海湖泊流域表土花粉组合的主要控制因素是风力作用.
The vegetation survey and topsoil pollination were conducted on 54 sampling sites in the Dalianhai lake basin in the Gonghe basin of Qinghai Province.The relationships between vegetation and topsoil pollen were studied.The results showed that topsoil pollen assemblage could reflect the general characteristics of the vegetation in this area, The pollen deposition in the Dalianhai Lake Basin is derived from vegetation in the whole basin. The correlation between pollen and the main vegetation types is good, but it can not fully reflect the community-building species, dominant species and coverage, etc. Artemisia and Chenopodiaceae have super- The main controlling factors influencing the pollen assemblage of the surface soil in the Dalianhai Lake Basin are as follows: Artemisia annuus / Quinoa ratio has the ecological characteristics of the regional vegetation and the significance of the climate indication, and the A / C changes obviously in different vegetation areas; Wind effect.